James miller



(No Model.)

J. MILLER. REGISTERING ALARM.

No. 543,449. 'Patent'e'dJuly 23, 1895.

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V WITNESSES UNITED STATES JAMES MILLER, OF DETROIT, MICHIGAN, ssrenoa TO JOHN SAME PLAoE.

PATENT OFFICE.

H. BROWN, or

REGISTERING-ALARM.

SPECIFICATION forming part of Letters Patent No. 543,449, dated July 23, 1895. Application filed May 6,1895. arm... 548.278. (N model.)

To aZZ- whom it may concern.-

Be it known that 1, JAMES MILLER, a citizen of the United States, residing at Detroit,

'county of Wayne, State of Michigan, have invented a certain new and useful Improvement in Sales-Registers; and I declare the following to be a full, clear, and exact description of the invention, such as will enable others skilledin the art to which it per .will sound an alarm ofa difierent character. Thls regularly-recurring change in the character'of' the alarm will call particular attention to the action of the register.

The device shown in the drawings is unconnected with any other mechanism,but may be used-in connection with. ordinary cashregisters, or may be used by itself.

In the drawings, Figure 1 shows the mechanism in elevation. Fig. 2 shows aplan View of the mechanism,- the hammer and hammerpawl being removed.

1 indicates the case in which ism is contained.

2 indicates a hell.

3 is a master-wheel actuated by a ratchetlever 4. The master-wheel3 consists of one part 3*, provided with ratchet-teeth, and a part 3*, provided with gear-teeth, one or more teeth,

however, being removed, thus making it a mutilated gear. The gear-wheel3 meshes with a pinion 5, fixed on the end of a shaft 6, 40

to which is fixed the inner end of a spiral spring 6.

7 indicatesa gear-wheel loose on theshaft 6, but provided with a ratchet-wheel 7, which 'engages a pawl that is fixed to the wheel 7.

the mechanis a hammer 3 The pawl is held in engagement with the ratchet-wheel by a spring 3? and theactuating-lever 41s lifted afterbeing I pushed down by a spring 4 The operation of the ratchet is as follows: With each sale made either the salesman or the customer pushes the key 11 downward and thus actuates the lever 4. This lever acting on the ratchet 3 rotates it forward, lifts the pawl 3 and the hammer at the end of it until the tooth of the ratchet-wheel passes forward far enough to allow the pawl 3 to return under the retractile force of the spring 3 and the hammer 3 which is at the end of the resilient arm, strikes the hell 2 and bounds away from it. The forward motion of the wheel 3 rotates the pinion 5 and winds the spring 6. This continues until the mutilated part of the wheel 3 reaches the pinion 5, when the restraining influence of the wheel 3 and its holding pawls being removed from the pinion the spring 6 unwinds, and in doing so actuates the hammer 10, producing a whirring or rattling noise like that of an alarm-clock, and'signifying that a certain predetermined number of impulses have been given to the master-wheel since a similar alarm has been previously sounded.

What I claim isl p In a register alarm, a bell and hammer therefor, a ratchet wheel and an actuating ratchet lever therefor, a master wheel muti lated at some part and fixed to said ratchet wheel, an escapement device and suitable gears connecting it to said masterwheeha hammer adapted to be actuated by said escapement mechanism, a spring adapted to be wound by the ratchet wheel and ratchet lever, and to actuate said escapement mechanism, the first mentioned hammer being adapted to strike the bell at each successive impulse given to the ratchet wheel, and the second mentioned hammer being adapted to sound an alarm when the gear slips on the mutilated part of the master wheel, substantially as described. I

In testimony whereof I sign this specifica: tion in the presence'of two witnesses.

7 JAMES MILLER.

Witnesses: i

D. W. BRADFORD, G. F. BURTON. 

